Title:
高温摺動部材および蒸気タービン
Document Type and Number:
Japanese Patent JP7163009
Kind Code:
B2
Abstract:
To provide a high-temperature slide member that prevents abnormal hardening from occurring in a padding weld part due to high temperature during use, and that can prevent cracking from occurring in the padding weld part due to reduction in toughness accompanying abnormal hardening, without causing increase in cost or work period problems in manufacturing the high-temperature slide member.SOLUTION: A high-temperature slide member comprises a base material part made of an iron based material, and a padding weld part formed on a surface of the base material part using a Co-Cr based heat-resistant alloy. In the high-temperature slide member, a dilution rate with a base material component falls into a range of 10-30%, in a region within a range of 0.2 mm-0.8 mm from a boundary surface of the base material part in a thickness direction of the padding weld part.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
Takayuki Yamashita
Shoichi Okawara
Kazuya Okada
Masaki Hata
Takahiko Hirohata
Shoichi Okawara
Kazuya Okada
Masaki Hata
Takahiko Hirohata
Application Number:
JP2017124103A
Publication Date:
October 31, 2022
Filing Date:
June 26, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B23K10/02; B23K35/30; C22C19/07; F01D17/10; F01D25/00; F16K1/38; F16K1/42; F16K51/00
Domestic Patent References:
| JP60206567A | ||||
| JP60228650A | ||||
| JP2015224385A | ||||
| JP2016150376A | ||||
| JP2010240700A |
Foreign References:
| WO2008111150A1 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada